What are stones?
Stone is a natural material, at the 2500 A.c. the stone was used to construction of shelter.

How many kinds of stone do you know?
I don’t know any kind of stone.

What characteristics do stones have?
The stone are a strong material, so many stones have a texture raw. Also, the stone can be of many colors.


Why are stones used in construction?
The stone are used in the construction because it is a strong material and resistant.